Math teachers... though there are specifics here there are fabulous resources in the collective resources pages.

Suggestion: when you find specific resources in the collection... create another link here to help others in the department.
Wetpaint This is another school's collection of Math resources.

Matrix Calculator Matrix Calculator

Simulations Simulations for Math and Science

Solving Math Problems Basic math to calculus. Put in an example or a real problem... solve and show steps to see if your solution was worked properly.

manipulative figures Math manipulative figures. Free on-line. Download is only a trial.

http://www.ct4me.net/math_projects.htm This page has "projects", directions and recommendations. User friendly and uses real world applications.

http://ozpk.tripod.com/0000000EQ If you are interested in web quests for math try this page for examples, how-to.

http://www.studygs.net/pbl.htm problem based learning

http://www.cotf.edu/ete/teacher/teacherout.html more about problem based learning

http://www.wpi.edu/Academics/Depts/Math/CIMS/IMPHSS/ Industrial mathematics Projects for high school students.

All Math All Sorts

Algebra Basics

Mathway

www.mathbits.com

Abbott & Costello Math